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-rw-r--r--arch/or1k/pthread_arch.h17
1 files changed, 17 insertions, 0 deletions
diff --git a/arch/or1k/pthread_arch.h b/arch/or1k/pthread_arch.h
new file mode 100644
index 00000000..e826997e
--- /dev/null
+++ b/arch/or1k/pthread_arch.h
@@ -0,0 +1,17 @@
+/* or1k use variant I, but with the twist that tp points to the end of TCB */
+static inline struct pthread *__pthread_self()
+{
+#ifdef __clang__
+ char *tp;
+ __asm__ __volatile__ ("l.ori %0, r10, 0" : "=r" (tp) );
+#else
+ register char *tp __asm__("r10");
+#endif
+ return (struct pthread *) (tp - sizeof(struct pthread));
+}
+
+#define TLS_ABOVE_TP
+#define TP_ADJ(p) ((char *)(p) + sizeof(struct pthread))
+
+/* word-offset to 'pc' in mcontext_t */
+#define CANCEL_REG_IP 32